A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5835-01-373-9506
NSN 5895-01-170-1518
NSN 5996-01-111-4145
NSN 5895-01-443-9420
NSN 6320-00-116-3658
NSN 6110-00-927-5436
NSN 6610-01-010-9392
NSN 6130-01-543-8633
NSN 5975-01-449-8300
NSN 5895-00-172-6256
NSN 5930-01-092-7498
NSN 6105-01-482-0415